Adam keck



A. BECK.

SAW SET.

(No Model.)

No. 468,577. Patented Feb. 9,1892.

51mm 044% M Wow w,

k s r 3 W; @QWZ UNITED STATES PATENT OFFICE.

ADAM RECK, OF HARTFORD, \VISCONSIN, ASSIGN OR OF ONE-HALF TO GEORGE F.HALL, OF SAME PLACE.

8 AW- 3 ET $PECIFICATION forming part of Letters Patent No. 468,577,dated February 9, 1892.

Application filed september 17, 1891. $eria1No. 405,963- (No model.)

T0 on whom it may concern:

Be it known that I, ADAM REGK, a citizen of the United States, and aresident of Hartford, in the county of WVashington, and in the State of\Visconsin, have invented certain new and useful Improvements inSaw-Sets; and I do herebydeclare that the following is a full, clear,and exact description thereof.

My invention has for its object to provide a self-feed saw-set; and itconsists in certain peculiarities of construction and combination ofparts to be hereinafter described with reference to the accompanyingdrawings, and subsequently claimed.

In the drawings, Figure 1 represents a side elevation of my device,partly in longitudinal section; Fig. 2, a plan view of the same, partlyin horizontal section; Fig. 3, a transverse section, certain of theparts being in elevation; Fig. 4, a detail elevation of a vertically-adjustable gage forming part of the device; Fig. 5, a detail plan view,partly in horizontal section, of a pawl-shifting mechanism forming partof said device; and Fig. 6, a detail perspective view of certain of theparts in their relative arrangement.

Referring by letter to the drawings, A represents the base-plate of mydevice, and by screws 1) or other suitable means this baseplate mayberigidly secured to a suitable support 13, as best illustrated in Fig. 1.Rising from the base-plateA is standard 0, provided with a vertical armD, the latter having a slot 0 in the direction of its length. Engagingthe slot in the standard-arm D is the screw-threaded shank d of averticaily-adjustable stop E, the latter being held in its adjustedposition by means of a set-nut e, as best illustrated in Fig. 3.

The standard 0 is provided with guides f for a vertical hammer F, theupper end of this hammer being pivotally connected to a hand-lever G,that is secured to said standard by means of a link H, the upwardmovement of the lever being limited by the stop E, above described.

Fitting a groove in the baseplate A to oppose the lower end of thehammer F is an anvil I, beveled on the side toward the operator andhaving a slotted tang g, engaged by a set screw h, that turns in saidbase-plate to hold the anvil in the position to which it may be adjustedto suit the depth of teeth on various saws.

Vertically adj ustableon the hammer-guides f, that form part of thestandard-O, is a gage J, that has awedging fit against the lower one ofsaid guides, and is provided with a beveled saw-opposing face 2', asbest illustrated in Figs. 3 and A, the bevel of said face beingapproximately the same as the bevel on the anvil. As shown,the tangj ofthe gageJ is provided with vertical slots km, respectively, engagingscrews or 0, that turn in the guides f on the standard 0, the latterscrew being provided with a set-head for the purpose of holding saidgage in its adjusted position.

The base-plate A is provided with vertical guides that in the presentinstance are shown as screws 19, and engaging these guides are theslotted or recessed ends of a plate K, longitudinally disposed on saidbase-plate and reciprocated on the latter by the means hereinafterdescribed.

Pivotally arranged on the plate K midway of its ends is a lever-plate L,having a cam portion q, that works between a pair of cars 0* on saidplate K, and this cam portion of the lever-plate is provided with acentral vertical lug s, that is designed to come in the path of lugs t con opposite sides of a link M, the latter being pivoted between saidbase-plate ears.

Retained on the lever-plate L, by means of a series of lugs thereon, isa fiat spring to, having its extremities opposed to pawls N O, that arepivoted on the plate K adjacent to saw-stops P, that rise from thislatter plate, and the extremities of said lever-plate are provided withlugs a; in opposition to the spring-controlled pawls.

Pivoted to the rear side of the base-plate standard 0 are bell-cranks Q,and one arm of each of these cranks is forked to engage a stud g on thehammer F, above described. The other end of each bell-crank is providedwith a hook z, and that end of the link M farthest from its pivot isnotched on opposite sides to engage either one or the other of thebell-crank hooks at the will of the operator, whereby when said link andeither one of the bell cranks are connected there will be areciprocation of the plate K each time the lever G is raised andlowered. It is also to be observed that when the link M is swung on itspivot one or the other of its lugs 15 n will act against the lug s onthe lever-plate L to partially rotate the latter on its pivot, wherebyone of pawls N or O is drawn in and the other forced outward, it beingintended that one or the other of these pawls shall engage with theteeth of the saw that is being set.

A saw to be set is placed with its teeth against the stops P on theplate K so as to have said teeth come between the hammer F and anvil I,the latter having been properly adjusted in the base-plate. The link Mbeing connected to the proper one of the bell-cranks Q, the relative oneof the pawls N O is in engagement with the saw-teeth, and each time thelever G is lift-ed there is a longitudinal movement of the plate K tocause said pawl to force the saw a certain distance in the desireddirection, whereby another tooth is.

brought over the anvil to be set by the next impact of the hammer, theamount of feed given to said saw being predetermined by the adjustmentof the lever-stop E, above described. When the lever is depressed tocause an impact of the hammer against the sawtooth that is now over theanvil, the plate K moves back toitsnormalposition and carries thefeed-pawl therewith.

The position of the gage J in a vertical direction determines the amountof set it is possible to give each saw-tooth, and as this gage has-awedging fit against one of the hammer-guides it is not liable to bedislodged from its adjusted position.

Certain of the teeth having been set to one side of the saw, the latteris turned end for end to have the remaining teeth set to the other sideof said saw, the link M being swung on its pivot to partially rotate thelever-plate L and thus bring the proper feed-pawl into working position.The link being now connected with the boll-crank that was previouslyidle,- the machine is ready for work and all that the operator has to dois to keep the saw against the stops on the reciprocative plate andoperate the hand-lever.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

In a saw-set, the combination of a baseplate and standard, avertically-adjustable saw-gage, a lever-controlled hammer loose inguides on the standard, an anvil on the baseplate in opposition i'o'thehammer, a sliding plate loose on said base-plate, saw-stops and pivotedspring controlled pawls on the sliding plate, a lever-plate pivoted tosaid" sliding plate and provided with lugs in opposition to the pawls, ashifting link for the lever-plate, pivotally connected to-the aforesaidsliding plate, bell-cranks pivoted to said standard and connected withsaid hammeigand suitable means for effecting a connection between saidlink and either of the bell-cranks at the will of the operator,substantially as set forth.

In testimony that I claim the foregoing I havehereunto set my hand atHartford, in the county of Washington and State of Wisconsin, in thepresence of two witnesses.

ADAM BECK.

\Vitnesses:

J. M.'LE COUNT, W. J. Lu COUNT.

